business and computing deanery 3d modelling tools week 13 animation
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3D Modelling Tools 2
This week Animation
Timelines Keyframes Constraints Video
3DS Max 7 Bible Chapter 29
Discuss your tests Discuss model A Look at the
schedule Organise
presentations Groups Subjects
Tutorials Bouncing a Ball Flying a Spacefighter
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Learning Outcomes Demonstrate knowledge and a critical
understanding of the principles of three-dimensional modelling.
Apply the concepts and principles of three-dimensional modelling to the generation of digital objects, avatars and environments for use in game development.
To evaluate and effectively communicate different methods and approaches to the generation of three-dimensional models used in a real game.
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Concepts What is animation? Modification of any
kind of object Light Material Camera
What can you change? Parameters
Position Rotation Scale
What parameters have been changed?
3ds max v7
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Frames A series of still
images Frames
Persistence of vision Illusion of fluid
motion
3ds max v7
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Frame rates Frame rate
Speed at which the images are displayed
Frames per second Different systems
have different rates
Standard rate in UK for output to film is 24fps 3ds max v7
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Timeline controls VCR like section of the interface
9 Animation playback controls10 Animation keying controls14 Track bar15 Time slider
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Key framing Like traditional 2D
animation techniques
Specific frames Tweening
Computer calculates the parameters of the object’s position for each intermediate frame
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Time controls Start or end Default scene starts with 100
If the output is set to 24 fps how long will this last?
Can be changed with the Time Configuration button
Auto Key Move to a frame, transform objects or
change their parameters. All changes register as keyframes.
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Linking and dummies Used in creating
complex motions and building complex hierarchies
3ds max v7
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Constraints Animation constraints are used to help
automate the animation process. Used to control an object’s
Position Rotation scale
A binding relationship with another object Requires one object and at least one
target object The target imposes specific limits on the
constrained object
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Links and chains A Link constraint is
used to animate an object linking from one target object to another
The Link constraint causes an object to inherit the position, rotation, and scale of its target object
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Motion paths A path constraint
restricts an object's movement along a spline
The spline curve (target) defines a path of motion for the constrained object.
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Keyframe weighting Affects the behaviour of the motion path Linear weighting
Keyframe to keyframe in a straight line TCB
Tension Amount of curvature in the path before and after
the keyframe Continuity
Adjust how tangent the path is to the control point Bias
Maximum extreme point
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Attachment The Attachment
constraint is a position constraint that attaches an object's position to a face on another object
By keying different attachments over time, you can animate the position of an object over the irregular surface of another object 3ds max v7
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Pivot points and axes An Orientation
constraint causes an object’s orientation to follow the orientation of an object
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Space warps Nonrenderable
objects that affect the appearance of other objects.
Space warps create force fields that deform other objects, creating the effect of ripples, waves, blowing wind, and so on.
3ds max v7
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Types rendering Renders viewport view Quick render Render to file
Still image, frame Animation
Render to print Quicktime VR
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File types The rendered output can be a still image
or an animation A selection of file types
AVI File (AVI) BMP Image file (BMP) Encapsulated PostScript format (EPS, PS) JPEG File (JPG) MOV QuickTime file (MOV) PNG Image File (PNG) TIF Image File (TIF)
Which are used for still or animation?
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Render output - avi Compressor
Set the codec (compressor/decompressor)
Compression Quality The higher you set the quality,
the larger the file size will be. Lossy technique
Keyframe Rate Specify the interval between
the delta keyframes used to compare one frame with another and generate in-between frames. 3ds max v7
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Render settings Resolution
Height and width in pixels
Consider aspect ratio Colour depth
8 bit allows 256 colours 24 bit allows 16 million More colours helps
reduce banding and errors
Anti-aliasing Active time segment Alpha channel
Atmospherics Eg. fog
Effects Eg. Blur
Advanced lighting Use a radiosity solution
or light tracing in the rendering
Render output
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Activity – output as a video Create an animation and output as an AVI Set the following
Active time segment 320 x 240 Files > Save as AVI Give it a name and note where you are saving
it Click Setup
Use Cinepak compression 15 fps 50% compression
Click Render
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Ghosting Ghosting is a
method of displaying wireframe of an animated object at a number of frames
Used to analyze and adjust your animation Views menu > Show
Ghosting 3ds max v7
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Portfolio 7 Create a scene with spheres, cones,
cylinders Create a motion path between these
shapes Add an object to the path
A box to represent a vehicle Print a screen grab of your
animation showing Ghosting
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Questions Describe the process of exporting
video What are the parameters, who would
you set them for display of the video over the web
Describe the process of animating a moving object with wheels
Discuss how to make an realistic animation of a bouncing ball
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Impendent study Directed reading 3DS Max 7 Bible
Read Chapters 22 and 29 Portfolio 7
Due Week14 Presentation Tutorials
Bouncing a Ball Flying a Space-fighter
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